Pressure-regulator.



J. D. WALLACE.

PRESSURE REGULATOR.

APPLICATION Flu-:D JUN; 21, 1913.

1,183,920. 7 y Patented May-23,l1916. I Z- 4- w/'Tf E ,.-uunl'w'iiz/ l' from theV discharge nozzle thereof.

; panying 4drawings and more particularly` 4-4f,respectively, of Fig.`f1.` i l In the. preferredform. ofthe invention lillustratedthe main bodyof the drinking UNITED STATES PATENT OEE@ x y JOSEPH DQ WALLACE, or CHICAGO; ILLINOIS.

PREssimE-REGULATOR.

To all whom t may concern B e it known that I, JOSEPH D. VALLACE, a citizen of the United States, and a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Pressure-Regulators for Drinking-Fountains and the like,

of whichthe following is declared to be* av full, clear, and exact description.

The invention relates to pressure regulators for drinking fountains ofvthat type in which a vertical jet or bubble is emitted The invention seeks to provide simple and effective means for regulating the flow of water through the fountain So that the jet or bubble will always be of substantially the same height, irrespective of variations ofy water in vthe supply the lpressure of the pipe.

The invention also seeks to provide a construction in which the Water passing through the fountain vis screened and the sediment so collected that the fountain can be readily cleaned. f

'A further object of the invention is to provide means for deflecting` the Water passing through the fountain when the discharge nozzle is stopped up or chokedv by mischievous persons, and which means is so.

arrangedas to ordinarily 'prevent wasting the water. y

` Theinvention seeks to otherwiseimprove and simplify the drinking fountain and provide a construction which can. be economi l4 .cally manufactured and which will notreadily get out of order.

The invention consists in the features of improvement hereinafter set forth, illustratedin the preferred form' in the accompointed out in the appended claims.

Inthe drawings, Figure 1 is fa vertical section of the preferred embodiment of the present'J invention-. Figs. 2, 3 and 4 are cross-sections on the lines 2 2, 3`f3 and fountaincomprises an upper', cylindrical casing 1 and a lowercup-like casing 2. The r latteris-provided at its` lower end with a reduced, internally threaded portion and is` `adapted to engage the threadedend of -a service pipe. .In the formfshown, the' lower Specification of Letters Patent.

Patented May 23, 1916.

' Application led June 2.1, 1913. Serial No. 775,001.

cup-likecasing is connected by a threaded nlpple to an elbow 4 on the end of the service p1pe' 5. provided with a cut-0E valve 6 which is preferably self closing. t

The lower portion of the upper cylindrical casing 1 extends withinl ltheflower cupthreaded portion 7 which engages internal threads in the upper part of the casing 2 and the upper casing is provided with an annular shoulder 8 which is adapted to abut against the upper edge of the lower casing. These two casings form, in effect, two sep- The latter is preferably 'like' casing 2. As shown, the upper casing Y section 1s provided with an externally screw arable sections of a single casingor body portion. The lower'portion 9 of the upper casing or section below the'screw threaded I portion 7 is'of reduced diameter, so that it is' spaced from the walls of the cup-like por,-v tion or casing 2. This lower reduced portion 9 has a closed lower end 10` and its side lwall, at some distance above its lower end,"

is provided with one or more inletports y Preferably, a circular series of inlet ports is provided, 'as most clearly shown lin Fig. .4.

' The inlet ports 11 arev controlled by a sliding piston valve 12 arranged'within the lower portion 9 of the cylindrical casing 1. This piston'valveis provided with a central axial bore 13 and is fitted, in a watertight manner, within the cylindrical casing. To

guard against leaking of the water around the piston valve 12', the latter is provided with circumferential water sealing grooves 14. It is also provided with one or more transverse passages v16 leading from its vcentral bore'and adapted to communicate' with the inlet ports 11. Preferably, as shown,

the piston valve is provided with a circular series of passages 16 which open into a large `circi'imferential groove 17 in lits outer wall and which, when the piston valve is inits ica . 'and a had 19. l The head or plug 19, ia u1@ 'form shown, isv adjustably threaded within l the upper end of the cylindrical casing 1 (and it'is provided with` a central bore or Lpassag'e20for the. discharge of Water therethrough.` By' adjusting the position of the i head 19, the pressure exerted by the spring 18 on the piston can be regulated, as deslred. Preferably, a lock nut is threaded on the head 'into 'engagement with .the upper end of the casin 1 tof hold .the head in adjusted position. his lock nut, in the construction shown, comprises a cup 21 which 1s provided. with an'Y upstanding-flange extendingabout theupper'endof the head 19. This cup not onlyA acts asa lock nut to hold the adjusting head 119 in position, but also .col- -lects the'overflow from the discharge passage -of the head.: The lower-.portion of the cup is -provided with a` series of ports ,7' or. passages 22 through which thewater collected inthe cucan escape.

Telescopic, tu es or sleeves Vare -itte'd onewithin the other in water tight fashion and extend from the head 19l and the piston valve 12 toprevent the application of the water` pressure .to the upperside of the piston` valve.

desired, be fixed to the piston rod, but

In the referred form shown, a 'sleeve 23 is driven into the enlarged lower end of the bore of the head 19, so that the sleeve is rigidly fixed to the head. -A tube or sleeve 24 extends-upwardly from the piston valve- 12 and telescopes within'the sleeve 23. This `tube or sleeve is preferably provided with water sealing grooves 25. The tube 24 could,

" ,preferably extends from a circular abut-v I ment plate'26vwhich lits a ainst the upper l y' forming the` face of the iston` valve. telescopic tu e=24and piston valve of s eparate pieces, thesesliding partsare: less liable l .to-bind.'l

- p l "'In the preferred forin shown, the tbe or p sleeve. 24is provided withan upper end wall VMi which are ,designed to throttle the How 'o f,

having two l.ports or passages 27 therein,

'.'water'through' theV fountain and are cf such size' as to glve thefdesired -heightof vjletor bubble ,with the minimum amountgpf pressure. If4 the pressure-increases, the piston will risey andl cu't downthe flow through the inletfportsflL j In' this way, thepressure n, within thevalve" andthe height of the jet or pressure in the service pipe. To permit the p bubble' emitted from the fountain is .uni,

formly maintained -in spite ofvariations of escape of any Water whlch may leakaround the piston or around the telescoping tube 24, the cylindrical casing 1 is provided with 60 i tween the iston valve and the head` 19.

apertures 28 4.which open into the space be- Thedisc arge passage o the head 19 is I f 'provided 4with a vertical yv movable dis` charge nozzle or'jet tube 29. VThis/jet tube has a lower-end walll provided "with: a series' ofperforations 30, and its u per end is preferably serrated or. provi ed with deep 'notches 31. 'The lower end of the tube is v also provided with aflange 32 which is arranged-between the end of the sleeve 23 and an lnternal shoulder 3 3 in the bore of the head 19 to thereby prevent.;the disengagementofthe jetj tube from -the head. When wateris flowing through the fountain, the

jet tube or nozzle `is held in"'elevated.'posi tion (as shown in dotted linesn Fig. 1) with thefffla'nge 32 lengaging the shoulder 33 and with its upper end projecting above the upper end of the head 19.

ner surface of the hollow head 19.

' The jet tube is preferably adapted to be heldin uppermost position and close the ports 34 by the momentum of water passing through the fountain. If any one tries to "l deflect .or squirt the water passing from the ,Y fountain by placing his finger on the discharge nozzle or jet tube 22, the latter will be readily depressed and will bring' a series 'of ports or openings 36 therein opposite the passages 35 and 34, so that the pressure of the water within the passage will be relieved vand the Water will pass out through these passages. The water of the jet or bubble cannot loe-deflected or squirted by placing the linger lightly on the upper end of the jet tube without depressing 1t, since the water will then escape freely through the notches 31 in the upper serrated edge of the jet tube. As stated, the jet tube is preferf'ably arranged to be upheld by the momentinm of water passing through the fountain, so that when the Water'is cut oli", the jet tube w11l fall by gravity to the position shown in full lines in Fig. 1v with the flange 32`at its lower end resting on the upper end of the sleeve 23.

As stated, the throttling apertures 27, between, the regulating piston valve and the nozzle, are of such size that suiicient water will pass therethrough to give the desired height of bubble-with the pressure of a few pounds in the 'service pipe. With higher pressures in the supply pipe, the' piston is forced lupwardly to cut downy the How through4 the inlet ports' 11 and thereby reduce the pressure within the passages leading to the throttling ports 27 to the desired low minimum. 4It should' be noted that the water pressure upon the surfaces of the passages 16 and A17 ofthe pressure regulating piston valve, is balanced and the shift of the piston is effected slowly bythe reduced waterpressure against its lower face. By

isi

this arrangement,-the pressure of the water upon the surfaces of the pistonv valve closely .adjacent the inlet ports l1 and balanced and maintain the reduced pressure uniformzand,v

at the desired low minimum in spite of wide variations inthe initial/pressure, land eveiif though the initial pressure may `be very 1 j y casing-'.andfhaving apassage for the disthe unbalanced piston area is, exposed only, I. to the reduced pressure at some distance" from the inlet ports, .no unbalanced portionss` of the regulating device being `exposed lili- 1-` v `.rectly to the initial pressure in the service pipe. By reason of this arrangementfth pressure regulating valve acts eiiiciently -t high.

from the essentials of the invention andthat parts may be utilized without adopting the construction set forth in entirety. I claiin as my' invention l Y f 1. iny a dnnkingffounain'or the iikath v combination of a pylindrical casing adapted to be connected toa service pipe and aninlet p ortin its sidewall, a sliding pist0n-valve in said casing exposed on one side,

to the-water pressure, vsaid piston-valve extending over said inlet port and havinga' transverse passage .communicating therewith,l an adjusting head having a threaded engagement with said casing, a spring interposed between said' head and said pistonvalve for opposing the pressure of the waterv thereon, a discharge nozzle communicating with said casing, and a throttling device invalve, substantially as described.

terposed between said nozzle andfsaid piston y 2. In a ydrinking fountain or the like, the

combination with a cylindrical casing closed at one end and having an inlet port in its side wall, a sliding piston-valvein said cas-vv ing having an axial bore andexposed on*y one side -to the .f water pressure in said casing,

said piston valve extending over said inletf` port and having a transverse passage communicating therewith, a headl adjustably threaded into the open end of said casing and having a passage for the discharge of water therethrough, al lock-nut threaded on said head, and a spring interposed between vsaid head and said piston valve to oppose the pressure of the water' thereon,

as described.

3. In a drinking -fountain'or the like, the 'combination with a cylindrical casing closed at one end and having an inlet pcrtin its side wall, a sliding piston-valve in'said casing having an axial bore and exposed on oneside to the water pressure in said casing,

said piston valve extending overl said inlet port and having a transverse passage coinmunicating therewith,V a head in threaded engagement withthe open end of said casing and having aQpassage for the discharge of water therethrough, a-coiled spring in- It is obvious that changes inay bev-made; in ,the details set forth without departure liavingfj enel-.side to the 'water pressure 1n saidcassubstantially said tube having an .end .wall provided with terposedbetween said Ql-iead'and said pistonsubstantially as described 1 41.. In a' drinking 'fountainor 'the like, the

asin-'g^h avi ng` an axia`l boite Aand exposed on lI ie `side1, to" the water pressure invsaid ca slilgffsaid.y piston 'valve-extending over said inlet ,port-and havingatransverse passage .,'conmiunicating therewith, ahead vin threadedf engagement with the open end of said chargeofjwater therethrough and axial telescop'ing sleeves'. one of said -sleeves having anLA "end :wall 'provided -with throttling aperturessubstantially1 as described. .1

1valveyandfaxial,telescoping sleeves extendi ing 'from 'said -head and 4said vp iston-valve,

" 5 A5'I na drinking fountain or-the'like, tliesg,

combination with a cylindrical casing closed at one end and having an inlet port in its easing-.having an axial bore and exposed on ing, `said-pistonvalve extending over said inlet lport and khaving a transverse passage ed engagement Withthe open end of said casing, 'and liavingv a lpassage '.for the discharge .ofwater therethrough and avsleeve l extending inwardly therefrom, an abutment side Wall, a sliding piston-valve in said casing having an' axial bore and exposed on one 81de tothe water pressure in said casing,

A communicatingtherewith, a head in threadico said piston valve extending` over said inlet l po'rt and having `a transverse passage communicating therewith, al head in 'threaded engagement'with the open end of. said casing, and having apassage for .the discharge .of water therethrough and a sleeve extending inwardly therefrom,'an abutment plate engaging said piston and having a tube fitting within said sleeve, and a coiledl spring iicV interposed-between said head and said plate,

throttling apertures, substantially as described. l f

7 Ina drinking fountain or the like,"the

combination of alower cup-like casing adapted to be lattached to a service pipe, anl upper, cylindrical vcasing threading into said lower casing and having a closed lower end,`

portion spaced 'from the wall of said lower casing/.and provided with a series of inlet ports in its side wall, a sliding pistonhaifing an axial bore in said-casing and exposed at its lower end to the water pressure therein, sai-d piston extending vover said inlet ports and having a transverse passage communicating therewith, a head vin threaded engagement with the upper end of said upper casing and lhaving a passage for the discharge of water therethrough and acoiled spring interposed -between said head and said piston, substantially as described.

8. In a drinking fountain or the like, the combination of a lower cup-like casing adaptedl to be attached to a service pipe, an upper, cylindrical casing threading into said l. portion spaced from the wall of said lower l5 casing, and provided with a series of inlet ports in its side wall, a sliding piston having an axial bore inA said casing and exposed at its lower end to the water pressure therein, said piston lextending over said inlet ports and having atransverse passage communicating therewith, a headinthreaded engagement with the upperend of said upper casing and having a passage for the discharge .of water therethrough `and a sleeve extending downwardly therefrom, a tube extending upwardly from said piston and fitting within said sleeve, said-tube having an end wall provided with throttling apertures, and a coiled spring interposed between said `headr and said piston, substantially as described.

9. In a drinking-.fountain or. the like, the

combination of a lower cup-likev casingv adapted to be attached to a service pipe, an

upper, cylindrical casing threading into said lower casing and having a closed lower end v portion spaced from the wall of said lower casing, and provided with a seriesof inlet ports in its side wall, a sliding piston havingan axial bore in said casing and exposed at its lower end to the water pressure therein,

said piston extending over saidv inlet ports and having a transverse-passage communieating therewith, a head in threaded engagement with the upper end 'of said upper casing and having a passage-for the-discharge y of water therethrough and a sleeve extending downwardly therefrom, a plate fitting the upper end ofsaid piston and having a tube fitting within said sleeve and a coiled lower casing and having a closed lower end spring interposed between said head and said plate, substantially as described.

10. A drinking fountain or the like comprising a lower, cup-like casing, an upper cylindrical casing having a closed lower en portion arranged within and spaced from the wall of said lower casing, and provided with-a series of inletports, a head in the upper end of said upper' casing having a discharge passage, a throttling device in said discharge passage, and a regulating valve in said cylindrical casing for controlling said inlet ports, the latter being relatively vsmall i'n area and adapted to strain the water passing through the fountain, substantially as described.

11. A drinking fountain or the likecomprising a lower, cup-like casing, an upper, cylindrical casing having a closed lower end portion arranged within and spaced from the wall of said lower casing, and provided 'with a series of inlet ports, a head in the '.upper end of said upper casing having a -piston-.valve fitted in said casinl over said inlet port and having an' axial ore and a transverse passage leading'from its bore and communicating with said inlet port, the lower end of said piston-valve being exposedto the water pressure, ahead in the upper endl of said casin sleeves having a water tight fit extending vrespectively from said head and said piston and communicating' with the bore of said jpiston, substantially as described.

-JOSEPH D. WALLACE.`

ELEANOR I-IAonNow,

` J. G. AivnERsoN.

and telescoping' 

